/* =============================================
   LAYOUT - Grid, containers, responsive
   Mobile-first breakpoints
   ============================================= */

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container--wide {
    max-width: var(--container-wide);
}

.container--narrow {
    max-width: var(--container-narrow);
}

/* Sections */
.section {
    padding: var(--space-12) 0;
    background-color: var(--color-bg-light);
    background-image: radial-gradient(ellipse 80% 60% at 100% 100%, rgba(244, 78, 18, 0.06) 0%, transparent 70%);
}

.section--sm {
    padding: var(--space-8) 0;
}

.section--lg {
    padding: var(--space-16) 0;
}

.section--dark {
    background-color: var(--color-bg-dark);
    background-image: radial-gradient(ellipse 80% 60% at 0% 100%, rgba(244, 78, 18, 0.15) 0%, transparent 70%);
    color: var(--color-text-light);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
    color: var(--color-text-white);
}

.section--dark p {
    color: var(--color-text-light);
}

.section--alt {
    background-color: var(--color-bg-light-alt);
    background-image: radial-gradient(ellipse 80% 60% at 0% 0%, rgba(244, 78, 18, 0.05) 0%, transparent 70%);
}

/* Flexbox utilities */
.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid system */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-2 {
    grid-template-columns: 1fr;
}

.grid-3 {
    grid-template-columns: 1fr;
}

.grid-4 {
    grid-template-columns: 1fr;
}

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Margin utilities */
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* =============================================
   RESPONSIVE BREAKPOINTS (Mobile-first)
   ============================================= */

/* Small tablets (576px+) */
@media (min-width: 576px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablets (768px+) */
@media (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }

    h1 { font-size: var(--text-5xl); }
    h2 { font-size: var(--text-4xl); }

    .section {
        padding: var(--space-16) 0;
    }

    .section--lg {
        padding: var(--space-20) 0;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop (992px+) */
@media (min-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Large desktop (1200px+) */
@media (min-width: 1200px) {
    :root {
        --container-padding: 2.5rem;
    }

    h1 { font-size: var(--text-6xl); }
}